Route 371 is a highway in western Missouri. Its southern terminus is at Route 273 north of Tracy. Its northern terminus is at Route 752 in St. Joseph. It is a former alignment of U.S. Route 71 (US 71).
Route 371 is a highway that begins in St. Joseph, Missouri and ends in Tracy, north of Platte City. It begins at an intersection with Route 752. After this point, the highway stays mostly parallel and relatively close to I-29/US 71 It then intersects with Route H and shortly after Route DD. Northwest of Dearborn, it intersects with Route 116. Shortly after, it intersects with another Route H. Route H follows along the path of route 371 until after it reaches a town called New Market. Further south it intersects with Route U. It then intersects with Route 273 and shortly after ends at an interchange with I-29/US 71.
Previously, the route started farther north at Business Route I-29, before travelling southward past an interchange with Interstate 229, before reaching the interchange with Route 752.